Rio de Janeiro Weather in September

What's the weather like in Rio de Janeiro (Rio de Janeiro) in September 2024?

The climate in Rio de Janeiro during September can be summarized as warm, humid and a little damp.

September is in the spring in Rio de Janeiro and is typically the 4th coldest month of the year. Daytime maximum temperatures average around a muggy 25°C (77°F), whilst at night 17°C (63°F) is normal.

Rio de Janeiro weather averages (imperial / metric)
Daytime temperature 25.1°C 77.1°F
Nightly temperature 17°C 62.5°F
Average temperature 21°C 69.8°F
Daily sunshine 5.1 hrs
Avg rainfall 96 mm 3.8 ins
Rainy days 12 days
Sea temperature 21.9°C 71.5°F
Humidity 79%
Windspeed 9kph 6 mph

On average September is the 4th driest month of the year in Rio de Janeiro with around 96mm 3.8 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 12 days, although this may vary considerably.

On the flip side this corresponds to an average of 5.1 hours of sunshine per day.

September temperatures in Rio de Janeiro

Rio de Janeiro average temperature in September

September rainfall

Rio de Janeiro average rain in September

September hourly sunshine

Rio de Janeiro average rain in September

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Rio de Janeiro in September 2024.

Other monthly averages

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Rio de Janeiro weather stats

Rio de Janeiro weather statistics
Hottest month: February 29.9°C 85.8°F
Driest month: July 66mm 2.6ins
Sunniest month: July 6.6hrs
Coldest month: July 24.2°C 75.6°F
Wettest month: December 207mm 8.1ins
Map showing location of Rio de Janeiro (-22.90278, -43.2075) Rio de Janeiro map pin © Google

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